If I hunt 1 area I have to be in my stand about 2 hrs before shooting light or I bump all the deer starting to come back from feeding.

It is TOUGH to sit in the stand ,I have fallen asleep several ( lots) times.
I have a pager that I can set to go off at a set time , I set it to go off 1/2 hr before shooting light and it is set to just vibrate not BEEP